Builder mechanism for yarn winding and spinning machines



April 2%, '1 @259 H. A. LEONARD BUILDER MECHANISM FOR YARN WINDING ANDSPINNING MACHINES Filed May 20, 1924 3 Sheets-Sheet 1 J/ITTOENEY April28, 1925. 1,535,729

H. A. LEONARD BUILDER MECHANISM FOR YARN WINDING AND SPINNING MACHINESFiled May 20, 1924 3 Sheets-Sheet 2 I 1 a A 1/ :7 1;-

fillllllllllllllll lllllllllllllllilll r H. A. LEONARD BUILDER MECHANISMFOR YARN WINDING AND SPINNING MACHINES Filed May 20. 1924 3 sheets sheet5 //v VENTO R g: a. Y BY WW @To RNE Y Patented Apr. 28 1925.

UNITED STAT OFFICE;

KERRY A. LEoNARnor irornnnnni Massmneserms; ASSTGNFOfi"TO serene canPOERATIUN, on Hermann, ivmssrrcn'usntr'rs; A cert-generics anaem a.

. 311 m MECHANISM FOR; YARN WINDING AND SPTI'NNINKG MacHrNEs.

Application filed May 20,-

Th al zlwizom itmag cmwewt:

Beit known that I, IIARRY A. LEONARD, a citi'zeni of the United States,residing at Hopedale, inthe county ofWorcester and State ofMassachusetts, have invented an Improvement in Builder Mechanisms forYarn finding and Spinning Machines, of which the following description,in connecvtion with the accompanying drawing-s is specification, likecharacters on the drawings representing like parts. This-inventionrelates to yarn inding or spinning machines, and more particularly tothebuilder mechanisms used in such machines for laying yarn uponyarnreceivers or bobbins. r

In Winding: yarn upon yarn receivers'or bobbinsrvv hichare to be used-inso called feelerc ilooms ;it is: desirable to preliminarily wind puporrthe yarn receivers or bobbins sufficient yarn: to insure the layingof a complete length of 'fillingin the shed on the final picle of theshuttle priorto replenishment.

2 referred to as bunches and are designed to cooperate with the feelerin fillingqreplen'ishment or feeler looms to call for a change infilling When that in the active shuttle has become substantiallyexhausted; so Manyvar-ieties' of mechanisms have hereto= fore beensuggested for placing such preliminary windings ori bunches upon thebobbins before commencing uthe regular Wind ingsg but these have been ofcomplicated construction and not readily applicable to the ordinarybuilder mechanism Which a usually consists of a builder cam and abuilderi arm connected by a flexible chain or strap to the yarn guidingmeans;

(Due ofwthe objects of the present inventime iswtoQprovide a bunchbuilder mechanisnr which may be associated readily ithas buildermechanism of usual construrtiom now: in common use Without any materialalteration thereof and wherein: the; bunch builder is ofr simpleconstruction:

l/V hen a set ofa yarlrreceivers or bobbins have'been fully" Wound Withyarrn it is now the common practice to stop the machine for GIN lhesepreliminary windings are frequently 192 a seei ianm vise lbw ado-fling, that is, to replace the full bobbins with empty ones prlor toagain commencing the Wmdm operation, and an important feature of thepresent invention therefore" consists'of; means associated With the regular builder arm for throwing into action the bunch builder mechanismprior to starting themachine after dotting, and: automatically renderthe bunch builder mechanism inoperative when the bunch hasbeencompletedto lay the regular traverse of yarnon the yarn receiversorbobbinstocomplete the windings.

The various novel features and new' comblnat ion of parts comprised bythe; present invention ill best be made clear from" the I followingdescri tion; and the; acco1npanying drawings; o one good practical formthereof, it being understood that the details may be varied ithinthetrue scope of the inventionas defined by the: claims. The invention Willconveniently be described in connection With anordinary spinningmachinewhereiir the yarn is spun and then Wound upon the receivers or bobbins,but the invention'is obviously not restricted to use With such machinesbut may be ad vantageously employed" in connection with other types ofyarn winding machines.

Inthe drawings: Fig. 1 isa perspective-view of a machine containing thepresent invention; some of" the parts of the machine being omitted forthepurpose of clearness of illustrationgj V Fig. 2 is; a side elevation,some ofthe parts being shown insection, of a builder motion containingthe present: invention; Fig. 3-is a plan View; u 1

Fig. 4 is a front VlGW of thefbuilderarm and bunch builder* on anenlarged scale; some of the, partsbeing: shown in section; and

of Figl 3; a a y i v The invention is:- show-11* as applied to r the 1builder mechanism of an ordinary spinning Fig- 5 isa cross-section-ontlie line 5- 5 deemed necessary to illustrate the entire spinningmachine except in so far as the present invention is associated with thedetails thereof, because such machines are now well known,

The end frames 1 of the machine, Fig. 1, are connected by the usualcross-ties 2,-and' on the rotating spindles.

Extending from the frame ofthe 'machine, as shown, from the cross-piece2 is a bracket 8 on which is mounted a rock shaft 9having an arm 10 onthe end of which rests a shoe 11 ofthe. ring rail lifter rods 12 wherebyas the rock shaft 9 is rocked, the ring rail would be given. itstraversing movements longitudinally of the yarn'receivers or bobbins.The rock shaft 9 is provided with an arm 13 carrying a weight 14 whichnormally tends to impart a liftingmovement to thering rail, as usual.

Secured to the rock shaft 9 is the segment arm 15 having connectedthereto the flexible member or chain 16 which extends over aguide-pulley 17 mounted on a bracket 18 carried by the machine frame andfrom thence downward to the builder arm 19 where the flexible member orchain 16 is secured to the usual drum 20 mounted for rotative movementupon the builder arm.

The drum 20 has associated therewith the worm wheel 21 which engages aworm 22 mounted as usual on the builder arm and actuated by the pickwheel 23 as the builder arm is raised and lowered. In the presentinstance, the pick wheel 23 is given its step' by-step movement by apawl 24 mounted on' the rocking arm 25 connected at one end to a fixedpart of the machine frame by means of a rod 26. The builder arm 19carries a pin or roller 27 which during regular traverse engages theperiphery of the main traverse cam 28. The builder arm 19 is mounted forrocking movement about a center 29, the construction being such thatduring regular traverse of the builder mechanism, the builder arm willbe raised and lowered by the combined action of the weight 14 and themain traverse cam 28 to lay the yarn upon the yarn receivers or bobbinsby regular traverse, and during such movement of the builder arm thepick wheelis actuated to let back on the flexible member or chain 16,thereby laying the'yarn upon the yarn receivers with a traverse thatgradually approaches the top'or end portions of the yarn receivers orbobbins. The mechanism so far described may be of usual construction andis well understood by those familiar with builder mechanisms.

In accordance with the present invention, the bunch builder comprisescoacting elements which may be brought into cooperative relation forbuilding the bunch under manual control of the machine attendant, andthen automatically moved out of coacting relation when the bunch iscompleted to permit the main traverse winds to be laid upon the yarnreceivers or bobbins without a jump being introduced between thecompletion of the bunch and the commencement of the main service wind.The main portions of the bunch builder coacting memhere are mounted uponthe builder arm and comprise a cam, shown as on the builder arm, movableto and from operative position, and such main portions of the bunchbuilder are constructed and arranged so that they may be applied to theregular builder arm now in ordinary use without material change in thedetails thereof.

Mounted upon the builder arm 19 is a frame 30 which may be appropriatelysecured to the builder arm by any approved or usual means, and at eachend of the frame 30 are the laterally projecting bearings 31 whichafford support for a worm shaft 32 carrying a worm 33, Fig. 2. As shown,the worm shaft 32 is journalled in bearings in the portions 31 of theframe and the worm 33 is disposed between such bearings. Secured to oneend of the worm shaft 32 is a bevelled gear 34 which meshes with thecorresponding bevelled gear 35, the latter of which is mounted on theaxial support 29 of the builder arm 19 and is continuously driven fromany suitable source by a train of mechanism, which in the presentinstance comprises the sprocket chain 36 which passes about a sprocketwheel on the axial support or shaft 29 and about another sprocket wheel37 mounted on a shaft 38 carried by a cross-member 39 of the machineframe. ()n the shaft 38 is a similar sprocket wheel 40 about whichpasses the sprocket chain 41 which derives its motion from the sprocketwheel 42 mounted on the main traverse cam shaft 43, the constructionbeing such that as the main traverse cam 28 is rotated, as usual, from agoing part of the machine, the worm shaft will be continuously rotated.In order that the slack in the sprocket chain 41 may be taken up and thechain held taut and in operative relation with its coacting parts, thesprocket chain 41 passes over the idler or tightener 44 mounted on themachine frame or part 39 by means of an arm 45. The sprocket chain andsprocket wheel train of mechanism affords a good practical form fortransmission of power to the worm shaft 32, but obviously, the wormshaft may be driven from any suitable source of power.

lation, the builder arm is entirely under the control of the bunchbuilder members, and as the bunch approaches completion the form of thebunch builder cam and its relacharacter or form of bunch may be Wound.-

In order to vary the size of the-bunch made by the bunch builder cam,the present invention contemplates means for limiting the amplitude ofmovement of the bunch builder cam as it travels back to its operativeposition as the operative trips the catch through the treadle 55. In thepresent instance, such movement of the bunch builder cam'to itsoperative position may be regulated by means of an adjusting bolt 67which may be conveniently threaded through the front bearing member 31,as indicated in FigsoQ, 3 and 4:, and extend lnwardly to contact withthe carrier 46 and limit its movement to operative position. To preventaccidental displacement of the regulating device 67, the latter may beprovided with a set nut. 68 to maintain it in adjusted position.

During the bunch building operation, the contour of the bunch buildercam 51 will dictate the. character of the bunch, so that by changing thecontour of the bunch builder cam the bunch may be given one or moretravels to complete the bunch, and at the end of the bunch buildingoperation the bunch builder cam will automatically move out of operatingrelation with its coacting -member 48 and regular traverse be assumedwithout jump of the ring rail. From the construction described it willbe apparent, also, that the bunch' builder of the present. invention maybe conveniently applied to the ordinary builder mechanisms .now incommon use without materially altering the construction or detailsthereof, by simply applying to the bunch builder arm the'assoclatedelements of the bunch builder cam and driving connections between theworm of the bunch builder mechanism and a going part of the machine.

It is sometimes desirable to give a slight movement to the ring rail,called jiggling, before commencing the formation of the bunch, or at anyother stage of the winding operation, and in the pres-ent'instance ofthe invention, instead of the attendant placing his foot upon thetreadle 55in depressing the ring rail for dotting, he

The trip bar 57 may ordinarily be returned to its initial position bythe spring 63 of the worm engaging catch, but it desired the arm 57 maybe assisted in this movement by aspring such as 57*.

WVhat is claimed is:

Claims.

1. In a builder mechanism, the combination of yarn guides for directingyarn to yarn receivers, a builder arm and regular traverse cam,connections between the builder arm and yarn guides, a bunch buildermember mounted on the builder arm and normally maintained in aninoperative position, a manually operated trip mounted on the builderarm for releasing the bunch builder member that it may move to bunchbuilder position, and means for automatically returning the bunchbuilder member to inoperative position on completion of the bunch.

2. In a builder mechanism, the combination of yarn guides for directingyarn to yarn receivers, a builder arm and regular service cam,connections between the builder arm and yarn guides, a bunch builder cammounted on the builder arm for movements to and from operative position,a member connecting with the cam on the builder arm for building thebunch, and means for moving the bunch builder cam on the builder arm outof coacting relation with said member when thebunch is completed thatthe yarn may be laid upon the receivers thereafter with regular servicetraverse.

3. In a machine. for winding yarn upon yarn receivers, the combinationof a main traverse cam and builder arm actuated thereby to lay th yarnupon the receivers with main service traverse, and a bunch buildermechanism for laying the preliminary windings on the receivers,comprising a bunch builder member mounted on and for move mentlengthwise of the builder arm, means for holding the bunch builderelement in inoperative position during the winding with main servicetraverse, a manually operated trip mounted on the builder arm forfreeing the bunch builder element for movement lengthwise oft-he builderarm into operative position, a second bunch builder element coactingwith the member on the builder arm during the-bunch building operation,and means for automatically disengaging said members when the bunch iscompleted.

4. In a machine of the character described, the combination of a maintraverse cam and builder arm, a bunch builder cam mounted on the builderarm, a member coacting therewith to build a bunch, means normallytendoperation of the treadle to permit the bunch builder members toassume cooperative relation, and means on the builder arm forautomatically moving the builder members relatively into inoperativerelation.

5 Ina msac'hiaieof the character described, the combination'of a maintraverse cam, a builder arm, a bunch builder cam mounted on the builderarm, a bunch builder member coacting With said cam on the builder arm tobuild a bunch, a treadle mounted on the builder arm, a train ofmechanism controlled by the treadle for effecting movement of the bunchbuilder cam and bunch builder mem ber into cooperative relation When thetreadle is manually actuated, and means for moving the bunch builder camand said member into inoperative relation when the hunch is completed.

(3. Ina machine of the character described, the combination of a maintraverse cam, a builder arm, a bunch builder cam mounted on the builderarm, a bunch builder member coacting with said cam on the builder arm tobuild a bunch, a treadle mounted on the builder arm, a train ofmechanism controlled by the treadle for effecting movement of the bunchbuilder cam and hunch builder member into cooperative relation when thetreadle is manually actuated, a device for regulating the extent of saidmovement to determine the size of the bunch, and means for moving thebunch builder cam and said member into inoperative relation When thebunch is completed.

,7. In a machine of the character described, the combination of a maintraverse cam, a bu1lder arm, yarn guldes connected to and I traversed bythe builderz'arm, a bunch builder cam mounted upon the builder arm, abunch builder member mounted for cooperating With the bunch builder camon the builder arm to build a bunch, means for effecting movement of thebunch buildercam on. the

builder arm into cooperative relation Wltll the bunch builder member,and treadle means onthe builder arm for controlling movement of thebunch builder cam on the builder arm. I i

S. In a machine of the character described, the combination of a maintraverse cam, a builder arm, yarn guides connected to and traversed bythe builder arm, a bunch builder cam mounted. upon the builder arm, abunch builder member for cooperating With the bunch builder cam 011 thebuilder arm to build a bunch, a worm on the builder arm, means forturning the worm, a carrier for the bunch builder cam, and means forcausing; the carrier to be actuated by the Worm and to be moved by ittoplace the bunch 9; A bunch builder, comprising, combination a builderarm and connected yarn guides,coacting elements adapted to Wind a bunchon yarn receivers, treadle controlled means. mounted on the builder armto move said coactm-g elements relatively into operative relationcontrolling the builder arm, and; automatic means for returningsaidcoactin-g elements into inoperative relationship that service windingsmay be laid upon the yarn receivers. y

10. A bunch builder, comprising, in combination a builder arm andconnected yarn guides, coacting elements adapted to Wind a bunch on yarnreceivers, treadle controlled means mounted on the builder arm to movesaid coatcing elements relatively into operative relation controllingthe builder arm, a regulator for determining the amount of relativemovement of the coacting elements, and automatic means. for returningsaid coacting elements into inoperative relationship thatservice'windings may be laid upon the yarn receivers.

11. In a machine of the character described, the combination of abuilder cam, a builder arnn-yarn guides connected to the builder arm,coacting elements adapted to be brought intoengagement to build a bunch,treadle controlled means mounted on the builder arm to cause saidelements to be brought into engagement by manual operation of thetreadle relative to the builder arm, and means for disengaging saidelements When the bunch is completed.

12. In a builder mechanism, thecombina tion of a builder cam, a builderarm, coacting members adapted to actuate the bullder arm to effectWinding of a bunch, one of said members being mounted in fixed positionand the other movable longitudinally, along the builder arm, a Wormmounted on the builder arm for moving said other member during theformation of the bunch, means for locking said other member in aninoperative position when the hunch is completed, and a trip mounted onthe builder arm for freeing said other member for actuation by the Wormto commence Winding a bunch When the machine is started after dofiing.

13. In a builder mechanism, the combination of a builder cam, a builderarm, coacting members adapted to actuate the builder arm to effectinding of a-bunch, one of said member, and a trip mounted on the builderarm for freeing said other member for actumeans'mounted on the builderarm for plac- 10 ing the cam on the builder arm in cooperative relationwith its coactmg member for autonmtically winding the bunch when themachine is started after dofiing.

In testimony whereof, I have signed my 15 name to this specification.

HARRY A. LEONARD.

